JPS5784106A - Rare earth cobalt permanent magnet - Google Patents

Rare earth cobalt permanent magnet

Info

Publication number
JPS5784106A
JPS5784106A JP55160429A JP16042980A JPS5784106A JP S5784106 A JPS5784106 A JP S5784106A JP 55160429 A JP55160429 A JP 55160429A JP 16042980 A JP16042980 A JP 16042980A JP S5784106 A JPS5784106 A JP S5784106A
Authority
JP
Japan
Prior art keywords
ingot
crystal
permanent magnet
rare earth
contents
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55160429A
Other languages
Japanese (ja)
Other versions
JPS648447B2 (en
Inventor
Tsuyoshi Kitabayashi
Itaru Okonogi
Tatsuya Shimoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55160429A priority Critical patent/JPS5784106A/en
Publication of JPS5784106A publication Critical patent/JPS5784106A/en
Publication of JPS648447B2 publication Critical patent/JPS648447B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To change magnetic power of a permanent magnet by a method wherein cast construction of ingot of an alloy consisting of Sm, Co, Cu, Fe, Al and being mainly composed of an Sm2Co17 type crystal having Sm contents of the prescribed range is made as a columnar crystal. CONSTITUTION:The alloy being mainly composed of the Sm2Co17 type crystal consisting of Sm, Co, Cu, Fe, Al and having Sm contents being within the range of 21-28wt% is dissolved using a high-frequency melting furnace, and is poured into a metal mold manufactured with iron at the pouring temperature of 1,700 deg.C. The solid solution treatment of the ingot thereof is performed at the temperature between 1,130-1,180 deg.C, and the aging treatment is performed in succession at 800 deg.C for 24hr to perform magnetic hardening. Accordingly structure of crystal of the ingot thereof can be formed as the columnar crystal, and the ingot thereof is pulverized and is kneaded with an organic binder, and press molding and hardening are performed to enable to obtain the magnet being enhanced magnetic power.
JP55160429A 1980-11-14 1980-11-14 Rare earth cobalt permanent magnet Granted JPS5784106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55160429A JPS5784106A (en) 1980-11-14 1980-11-14 Rare earth cobalt permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55160429A JPS5784106A (en) 1980-11-14 1980-11-14 Rare earth cobalt permanent magnet

Publications (2)

Publication Number Publication Date
JPS5784106A true JPS5784106A (en) 1982-05-26
JPS648447B2 JPS648447B2 (en) 1989-02-14

Family

ID=15714733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55160429A Granted JPS5784106A (en) 1980-11-14 1980-11-14 Rare earth cobalt permanent magnet

Country Status (1)

Country Link
JP (1) JPS5784106A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829770A (en) * 1984-03-30 1989-05-16 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration
US5213630A (en) * 1984-03-30 1993-05-25 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10109590A (en) * 1996-10-07 1998-04-28 Nippon Buyuutec:Kk Automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829770A (en) * 1984-03-30 1989-05-16 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration
US5124215A (en) * 1984-03-30 1992-06-23 Tokyo Institute Of Technology Magnetic material for magnetic refrigeration
US5213630A (en) * 1984-03-30 1993-05-25 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration

Also Published As

Publication number Publication date
JPS648447B2 (en) 1989-02-14

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